| Actor | Role |
|---|---|
 Leonid Ivanov-RayevChief engineer | Chief engineer |
 Vladimir RomashkovZotov, master | Zotov, master |
 Fyodor BogdanovFactory director | Factory director |
 Olga RozevskayaZoya, Zotov's daughter | Zoya, Zotov's daughter |
 Nikolay MikhaylovIlya Ivanov, intern | Ilya Ivanov, intern |
| NNikolay WildgrubeAleksey | Aleksey |
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